<%
	Response.Charset="utf-8"
	userName = request("userName")
	IF trim(userName)="" Then  
		Response.Write("{Error:500,str:'用户名不能为空！'}")
		response.End()
	end if
	IF userName="test" Then
		Response.Write("{Error:300,str:'用户名已被使用！',Altern:['test1','test2','test3']}")	
	Else
		Response.Write("{Error:200,str:'用户名可以使用！'}")
	End IF
%>